Speedi-Products SM-W3106 NB 10-Inch Width by 3.25-Inch to 6-Inch Width Stack 90-Degree Boot
6-Inch Wall Stack 90 Degree Boot * For transitioning Rectangular Wall Stack ducting to Round Sheet Metal Pipe * For interior wall supply and return air ducts * Seal joints with approved duct mastic sealants * Insulate Ductwork for improved energy efficiency and comfort